McDonnell & Miller 47-2 Water Feeder

This McDonnell Series 47/47-2 is considered to be Mechanical Water Feeders/Low Water Cut-Offs for steam and hot water boilers with cold water feed. There is continuous maintenance of minimum safe water level, independent of electrical service with proportional feed action. There are quick hook-up fittings provided with quick-change replaceable cartridge valve and strainer. There is a manual reset with:Maximum water supply pressure 150 psi (10.5 kg/cm sq.)Maximum inlet water temperature 120 degrees F (49 degrees C)Maximum boiler pressure 25 psi (1.8 kg/cm sq.)